| Issue |
EPJ Web Conf.
Volume 264, 2022
EFM21 – 15th International Conference “Experimental Fluid Mechanics 2021”
|
|
|---|---|---|
| Article Number | 01034 | |
| Number of page(s) | 5 | |
| Section | Contributions | |
| DOI | https://doi.org/10.1051/epjconf/202226401034 | |
| Published online | 11 July 2022 | |
https://doi.org/10.1051/epjconf/202226401034
Quantitative Schlieren imaging based on fringe projection
Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentská 2, 461 17 Liberec 1, Czech Republic
* Corresponding author: pavel.psota@tul.cz
Published online: 11 July 2022
An effective yet simple quantitative synthetic Schlieren imaging technique is presented in this paper. A multiplexed fringe pattern displayed on a common laptop screen is observed through a disturbed medium resulting in a change of the fringe pattern. Fourier analysis of such pattern provides high-resolution and almost real time measurement of rays’ deflection due to the medium refractive index variation. The developed technique was applied for measurement of a compressible fluid discharge from a narrow channel in a wind tunnel.
© The Authors, published by EDP Sciences, 2022
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